Updating of indexes with elasticsearch-py

Hi,

I have gotten my python script which is using the elasticsearch-py library to index a csv file which will be updated daily. However, i am currently deleting the existing index and creating it again to "update" the data when i rerun the script as i could not think of any ways to update the index.
This is definitely not the correct solution, therefore i am seeking advice on this here.

:frowning: :face_with_head_bandage: